Metal sheet-piling.



PATENTED' JULY l1, 1905,.

H. WITTEKIEQLv METAL SHEET PILING.

APPLICATION FILED NOV. 17. 1904.

UNITED STATES Patented July 1i, 1905.

PATENT OEETCE.

METAL SHEET-FILING SPECIFICATION forming part of Letters Patent No. 794,268, dated July 11, 1905.

Application filed November 17, 1904. Serial No. 283,068.

T all whom t may con/cern:

Be it known that I, HENRY IITTEKIND, a citizen of the United States, residing at Ohicago, county of Cook, State of Illinois, have invented a certain new and useful Improvement in Metal Sheet-Filing; and I declare the following' to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates in general to piling for use in constructing caissons, coifer-dams, foundations for buildings, bridges, te., and more particularly to metal sheet-piling.

The primary object of my invention is to provide a metal sheet-piling consisting in a series of duplicate sections composed of standard rolled beams, the sections adapted to be interiocked as they are successively driven.

A further object of my invention is to provide a metal sheet-piling composed of duplicate sections which may be readily interlocked as they are successively driven, so as to render the piling strong' and waterproof, and which at the same time will be simple in construction and durable in use.

The embodiment of my invention herein disclosed may be generally described as consisting in a metal sheet-piling composed of duplicate interlocked sections, each section comprising a vertical central plate, a Z-bearn, one side flange of which overlaps and is rigidly secured to one side of the plate, while the other flange of the Z-beam extends outwardly in a plane parallel to the central plate, an angle beam secured to and extending aro und the other side edge of the central plate, and means for spacing the angle-beam from the plate to form therewith an angular channel conforming in cross-section to the crosssection of the projecting portion of the Z- beam.

My invention will be more fully described hereinafter with reference to the accompanying drawings, in which the same is illustrated as embodied in a convenient and practical form, and in Which- Figure I is an elevational View of two interlocked sections; and Fig. 2, a sectional view on line 2 2, Fig. 1.

The same reference characters are used to designate the same parts in the two 'figures of the drawings.

Reference character A indicates a vertical plate of any desired height, width, and thickness, suitable for use in constructing metal sheet-piling.

O indicates an angle-beam extending around one sideedge of the plate A and spaced apart therefrom to form an angular channel c.

Any suitable means may be provided for spacing the angle-beam O from 'the edge of the central plate A-such, for instance, as a strip D interposed between the plate and the edge of the angle-beam. Any suitable fastening device may be provided for rigidly uniting the angle-beam to the plate A-such, for instance, as rivets l fastened through registering openings in the plate, filler-strip, and angle-beam.

In lieu of employing the filler-strip D the channel between the angle-beam O and plate A may be formed by offsetting vertically the inner edge of the angle-beam, as clearly shown and described in my prior United States Patent No. 744,847, dated November 24, 1903.

A Z-beam Bis rigidly secured to the side edge of the plate A opposite to the edge around which the angle-beam C extends. One iiange of the Z-beam B overlaps the side edge of the central plate A and is rigidly secured thereto by any suitable meanssuch, for instance, as

In constructing a sheet-piling by the use of my improved duplicate vertical sections the several sections are successively driven, the projecting portion ofthe Z-beam of one section being interlocked with the angular channel of the previously-driven section. It is obvious that the section to be driven may be equally as well engaged with the previously-driven section by engaging the channel therein with the projecting portion ofthe Z-beam, it being evident that each section occupies an inverted position with respect to the previously-driven section. A piling ot' any desired length may be readily constructed by driving' the desired number of duplicate sections.

From the foregoing description it will bel observed that I have invented an improved metal sheet-piling composed of duplicate sections, each section having at one side an angular channel of a cross-section to correspond to an angular beam projecting from the other side thereof. It will be further observed that a piling constructed of myimproved duplicate sections will constitute a rigid wall, the parts of which are securely held against lateral as Well as longitudinal separation, the longitudinal separation being prevented by the ilange 020i' the angle-beam and the lateral separation being prevented by the flange of the Z-beam B through its interloeked engagement with the angular channel formed between the central plate and the angle-beam C.

While I have described more or less precisely the details of construction, I do not wish to be'understood as limiting myself thereto,

, as I contemplate changes in form, the proporposed of a plate, an otfset laterally-projecting ilange at one side edge, and an angular channel at its other side edge conforming in crosssection to said flange.

3. In a section for metal sheet-piling, the

combination with a central plate, of a Z-beam having one flange rigidly secured to one side of said plate and its other flange projecting laterally, an angle-beam spacedv apart from said plate and extending around the other side of said plate thereby forming a channel conforming in cross-section to the projecting portion or' said Z-beam.

1L. In a section for metal sheet-piling, the combination with a central plate, of a Z-beam having one iiange rigidly secured to one side of said plate and its other flange projecting laterally therefrom, an angle-beam extending around the other side edge of said plate, and a filler-strip interposed between said plate and angle-beam thereby forming a channel corresponding in cross-section to a portion of said Z-beam projecting from said plate.

In testimony whereofl I sign this specification in the presence of two witnesses.

HENRY WITTEKIND. Witnesses:

GEO. L. WILKINSON, C. A'. MULLEN. 

